Portable armrest expander



FIG. 1 is a bottom plan view of a portable armrest expander showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front perspective view thereof;

FIG. 5 is a rear perspective view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a perspective view thereof showing an unused state; and,

FIG. 10 is a perspective view thereof showing a use state.

The broken line showing of the chair and person is for the purpose of illustrating the environmental structure and forms no part of the claimed design. 

CLAIM The ornamental design for a portable armrest expander, as shown and described. 